The 41st president has been in the hospital since Nov. 23 with a lingering, bronchitis-like cough. A hospital spokesman had said Bush was likely to be released to spend Christmas at home, but then the former president developed a fever.

McGrath says doctors remain "cautiously optimistic" that Bush will recover but they want to keep him in the hospital.

(Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)

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